package com.example.demo.pdfbox.tabel.form;import com.example.demo.pdfbox.tabel.PdfElement;import lombok.Getter;import lombok.Setter;import java.io.Serializable;import java.util.ArrayList;import java.util.List;@Getterpublic class PdfRow extends PdfElement implements Serializable {    /**     * 行高     */    @Setter    private float height;    /**     * 最小行高     */    @Setter    private float minHeight;    private List<PdfColumn> columnList=new ArrayList<>();    public void addColumn(PdfColumn column){        columnList.add(column);    }}